Home / 680,343,477-939,164,211.54-457,454,351.40

Finding the Fourth Proportional to 680,343,477, 939,164,211.54 and 457,454,351.40

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Solution

The fourth proportional to 680,343,477, 939,164,211.54 and 457,454,351.40 is: 631,482,140.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,343,477 : 939,164,211.54 = 457,454,351.40 : x
  2. Step 2: Convert to fraction form
    680,343,477/939,164,211.54 = 457,454,351.40/x
  3. Step 3: Cross multiply
    680,343,477x = 939,164,211.54 × 457,454,351.40
  4. Step 4: Simplify right side
    680,343,477x = 429,624,755,248,123,072
  5. Step 5: Solve for x
    x = 429,624,755,248,123,072/680,343,477
  6. Step 6: Final answer
    x = 631,482,140.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.